Added jest specs, rel, handle only http(s) in linkify, fix color

Credit goes to: @mrincon

app/assets/javascripts/jobs/components/log/line.vue

 <script>
+import linkifyHtml from 'linkifyjs/html';
+import { sanitize } from '~/lib/dompurify';
+import { isAbsolute } from '~/lib/utils/url_utility';
 import LineNumber from './line_number.vue';
 
+const linkifyOptions = {
+  attributes: {
+    // eslint-disable-next-line @gitlab/require-i18n-strings
+    rel: 'nofollow noopener',
+  },
+  className: 'gl-reset-color!',
+  defaultProtocol: 'https',
+  validate: {
+    email: false,
+    url(value) {
+      return isAbsolute(value);
+    },
+  },
+};
+
 export default {
   functional: true,
   props: {
@@ -17,13 +35,15 @@ export default {
     const { line, path } = props;
 
     const chars = line.content.map(content => {
-      return h(
-        'span',
-        {
-          class: ['gl-white-space-pre-wrap', content.style],
+      const linkfied = linkifyHtml(content.text, linkifyOptions);
+      return h('span', {
+        class: ['gl-white-space-pre-wrap', content.style],
+        domProps: {
+          innerHTML: sanitize(linkfied, {
+            ALLOWED_TAGS: ['a'],
+          }),
         },
-        content.text,
-      );
+      });
     });
 
     return h('div', { class: 'js-line log-line' }, [

changelogs/unreleased/18324-add-links-to-urls-in-job-logs.yml

+---
+title: Make URL links in job logs clickable
+merge_request: 40175
+author: Łukasz Groszkowski @falxcerebri
+type: added

package.json

@@ -106,6 +106,7 @@
     "jszip": "^3.1.3",
     "jszip-utils": "^0.0.2",
     "katex": "^0.10.0",
+    "linkifyjs": "^2.1.9",
     "lodash": "^4.17.20",
     "marked": "^0.3.12",
     "mermaid": "^8.5.2",

spec/frontend/jobs/components/log/line_spec.js

@@ -2,21 +2,25 @@ import { shallowMount } from '@vue/test-utils';
 import Line from '~/jobs/components/log/line.vue';
 import LineNumber from '~/jobs/components/log/line_number.vue';
 
+const httpUrl = 'http://example.com';
+const httpsUrl = 'https://example.com';
+
+const mockProps = ({ text = 'Running with gitlab-runner 12.1.0 (de7731dd)' } = {}) => ({
+  line: {
+    content: [
+      {
+        text,
+        style: 'term-fg-l-green',
+      },
+    ],
+    lineNumber: 0,
+  },
+  path: '/jashkenas/underscore/-/jobs/335',
+});
+
 describe('Job Log Line', () => {
   let wrapper;
-
-  const data = {
-    line: {
-      content: [
-        {
-          text: 'Running with gitlab-runner 12.1.0 (de7731dd)',
-          style: 'term-fg-l-green',
-        },
-      ],
-      lineNumber: 0,
-    },
-    path: '/jashkenas/underscore/-/jobs/335',
-  };
+  let data;
 
   const createComponent = (props = {}) => {
     wrapper = shallowMount(Line, {
@@ -27,6 +31,7 @@ describe('Job Log Line', () => {
   };
 
   beforeEach(() => {
+    data = mockProps();
     createComponent(data);
   });
 
@@ -45,4 +50,38 @@ describe('Job Log Line', () => {
   it('renders the provided style as a class attribute', () => {
     expect(wrapper.find('span').classes()).toContain(data.line.content[0].style);
   });
+
+  describe('when the line contains a link', () => {
+    const findLink = () => wrapper.find('span a');
+
+    it('renders an http link', () => {
+      createComponent(mockProps({ text: httpUrl }));
+
+      expect(findLink().text()).toBe(httpUrl);
+      expect(findLink().attributes().href).toEqual(httpUrl);
+    });
+
+    it('renders an https link', () => {
+      createComponent(mockProps({ text: httpsUrl }));
+
+      expect(findLink().text()).toBe(httpsUrl);
+      expect(findLink().attributes().href).toEqual(httpsUrl);
+    });
+
+    it('renders a link with rel nofollow and noopener', () => {
+      createComponent(mockProps({ text: httpsUrl }));
+
+      expect(findLink().attributes().rel).toBe('nofollow noopener');
+    });
+
+    test.each`
+      type           | text
+      ${'ftp'}       | ${'ftp://example.com/file'}
+      ${'email'}     | ${'email@example.com'}
+      ${'no scheme'} | ${'example.com/page'}
+    `('does not render a $type link', ({ text }) => {
+      createComponent(mockProps({ text }));
+      expect(findLink().exists()).toBe(false);
+    });
+  });
 });

yarn.lock

@@ -7602,6 +7602,11 @@ linkify-it@^2.0.0:
   dependencies:
     uc.micro "^1.0.1"
 
+linkifyjs@^2.1.9:
+  version "2.1.9"
+  resolved "https://registry.yarnpkg.com/linkifyjs/-/linkifyjs-2.1.9.tgz#af06e45a2866ff06c4766582590d098a4d584702"
+  integrity sha512-74ivurkK6WHvHFozVaGtQWV38FzBwSTGNmJolEgFp7QgR2bl6ArUWlvT4GcHKbPe1z3nWYi+VUdDZk16zDOVug==
+
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"